: GROUP BY : Select Query MySQL TUTORIALS
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MySQL TUTORIALS
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Select Query
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GROUP BY
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12.1 .
Count the number of employees per city only for employees whose description is known
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12.2 .
Use count(), OR and Group by
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12.3 .
Group by NULL value
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12.4 .
With no GROUP columns is illegal if there is no GROUP BY clause
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12.5 .
You can use COUNT() if you want to find out how many employees each city has
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12.6 .
'GROUP BY' directive can display the data grouped by field
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MySQL TUTORIALS
Select Query
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GROUP BY
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Count the number of employees per city only for employees whose description is known
